Installation on CentOS 7 / upgrade of webkitgtk

The package modelio-open-source3.8-3.8.0.x86_64.rpm fails to install on CentOS 7 due to a dependency on webkitgtk. It is unclear where webkitgtk-1.0 libraries could be found. CentOS does distribute webkitgtk3 and webkitgtk4. Perhaps updating Modelio to use the newer versions of webkitgtk would make it easier to fulfill the dependency.